in north america and one bay area city made the list. the list is by kodok exist boston is first, san francisco is second, seattle, vancouver, and new york city. coming in six is washington d.c., toronto, chicago, los angeles and rounding out the top 10 is montreal. >> [ crickets chirping ] [ traffic passing ] ♪ [ music box: lullaby ] [ man on tv, indistinct ] ♪ [ baby coos ] [ man announcing ] millions are still exposed to the dangers... of secondhand smoke... and some of them can't do anything about it. ♪ [ continues ] [ gasping ] >> detroit mayor dave bing has settled the bad he lost again san francisco mayor get lead over the world series. the mayors have agreed upon a day of service performed in the winner's city as well as a tour of some businesses there. yesterday's lee brought bing to offices of twitter as well as screen star, a design studio for digital clean text are as. they ended their day at at&t park, where the mayors met with members of the junior giants youth thejuniorbing returns to detroit today. >> we should get